Microbes across Earth's coldest regions are becoming more active as glaciers, permafrost and sea ice thaw, accelerating ...

Polar bears need fat to survive the harsh Arctic cold; that’s why they eat blubbery seals. Seals, meanwhile, need ice to rest ...

A population of bears in Norway’s Arctic is confounding scientists’ expectations, getting fatter and healthier even as the sea ice melts rapidly.

Polar bears are the poster children of climate change—and for good reason. Researchers took more than 1,000 body measurements ...

An unusually brutal winter storm is set to pummel more than 160 million Americans from Friday, as a stretched "polar vortex" sends a devastating blast of Arctic air, bringing heavy snows and freezing ...

Rising Arctic temperatures and melting sea ice could be causing cold air to flow into the Northern Hemisphere. But not all ...

Add Yahoo as a preferred source to see more of our stories on Google. It's no secret that polar bears in the Arctic are suffering as a result of changing conditions due to climate change, but a new ...

Learn how polar bears in the Arctic’s Barents Sea are maintaining healthy fat reserves despite sea ice loss in a warming ...

The extreme light environment of the Earth's polar regions fosters unique conditions that could play a crucial role in maintaining global biodiversity over time, a new study by Finnish researchers ...

Rapid changes in climate in the polar regions are causing observable ecological impacts of various types and degrees of severity at all ecosystem levels. Even larger changes and more significant ...

Last year, the United Nations predicted that Earth’s average temperature could rise more than 5.4 degrees Fahrenheit (3 degrees Celsius) by 2100 if we don’t reduce global emissions. That level of ...